On: The Ubiquitous Kronecker Product (2000) [pdf]

[cs702]

Also known as the tensor product of linear maps in a particular basis:

https://jeremykun.com/2014/01/17/how-to-conquer-tensorphobia...

http://www.math.harvard.edu/archive/25b_spring_05/tensor.pdf

https://www.dpmms.cam.ac.uk/~wtg10/tensors3.html